Tips for Towing Electric Vehicles Through the Snow

Winter is fast approaching, and this could lead to situations where you need to tow an electric vehicle in the snow. Towing in these conditions is tough enough, but with EVs, there’s so much more to take into account. 

Luckily, we’re here to provide you with expert tips for safely towing an EV through the snow.

Understand the Unique Challenges of Towing an EV

Towing EVs are different from their combustion engine counterparts. Due to their large battery packs, they tend to be a lot heavier, which can impact handling during towing. 

These are equipped with regenerative braking technology and, if not handled correctly, can cause severe damage. These problems are magnified due to their reduced traction and the possibility of snow and ice affecting the undercarriage.

You can learn more about this by checking out our article about the challenges of towing electric cars.

Choose the Right Equipment

• Flatbed Tow Trucks: The best method for towing an EV, especially in winter, is to use a flatbed tow truck. These trucks keep the vehicle off the ground, preventing any unnecessary strain on the motor and battery system. Snow can also freeze components within the undercarriage if dragged by traditional dollies. 
• Tow Chains: Tow chains are your best friend in snowy conditions. Pairing these with high-traction tires is even better. Snow reduces friction, and these will help you navigate the snowy or icy roads with much more confidence.
• Snow Chains for the EV: If the EV has chains available for its tires, consider using them to improve traction during the towing process. However, only install them if the EV's tires remain on the ground (such as in a dolly tow scenario).

Pre-Tow Preparations

1. Battery Discharge: Before towing, discharge the battery to a safe level. The battery tends to charge 30-50% when the EV is being towed, especially in freezing temperatures. A full battery in extreme cold can strain the system, while one that is totally depleted is at risk of freezing.
2. Disable Regenerative Braking: Regenerative braking on EVs is a feature designed to capture energy when the vehicle slows down. When being towed, this can cause issues that can destroy the battery. If the wheels have to be on the ground while being towed, make sure that this feature is disabled.
3. Check for Snow and Ice Accumulation: Inspect the EV's undercarriage for excessive snow and ice buildup before towing. Snow trapped around the battery pack or the motor could cause damage once the vehicle starts moving or enters a warmer environment.

Towing Techniques for EVs in Snowy Conditions

• Slow and Steady: When towing an EV through snow, keep your speed low. Sudden acceleration, braking, or steering can cause loss of control, especially if the road is icy. Avoid any sudden jerks or aggressive moves that could transfer shock to the towed vehicle.
• Proper Weight Distribution: Due to the weight of EVs, the tow truck must be rated to handle the vehicle’s mass. Heavier vehicles can affect steering and braking on snowy roads, so it's vital that the towing equipment is adequate and weight is distributed evenly on the flatbed.
• Watch for Traction Control: EVs have sophisticated traction control systems that can interfere with towing if not properly disabled. Make sure the traction control system is turned off before you begin towing, or the towed vehicle may fight against the tow.

Prevent Freezing of Critical EV Components

• Keep the Cabin Warm: If possible, keep the EV’s cabin warm to prevent battery coolant from freezing. This is especially important if the vehicle is being kept outside before or after towing. Again, balance is crucial here to ensure you don’t drain the battery altogether.
• Monitor the Battery Temperature: EVs have sophisticated battery management systems that monitor and regulate the battery's temperature. To avoid battery issues, monitor this through the vehicle’s onboard diagnostics (if accessible) during towing.

Post-Towing Considerations

• Inspect for Snow Buildup: Always inspect the undercarriage and wheel wells for any lingering snow or ice after towing. Snow compacted against sensitive components could cause damage when it melts.
• Recharge Promptly: Cold weather rapidly drains EV batteries, so once the vehicle is safely at its destination, plug it in to charge. This is especially important if the car is discharged before towing.

Final Thoughts

Towing electric vehicles through snow presents unique challenges due to their weight, sensitive battery components, and winter conditions. Using a flatbed tow truck, disabling the regenerative braking system, and ensuring proper pre-tow preparations are key to a safe and damage-free towing experience. Whether you're a seasoned tow operator or facing a winter tow for the first time, keeping these tips in mind will help ensure a smooth operation.